without killing an individual follows the policy of the ABC. Description The bird most closely resembles the brown-banded antpitta, which is endemic to the Cordillera Central of Colombia, but it has a slate-grey breast and lacks the brown flanks and breast band of the other species. Measurements of the living bird from which Barrera and Bartels' holotype material was derived, as well as of the two collected specimens, show weights ranging from , flat wing chords of , tail lengths of , and tarsus lengths of . The sexes are similar in appearance, as with most other antpittas. A captured fledgling was covered with dark grey down with brown edges above and was buff below. Its feet were dark pink; its bill was black above and orange below, with conspicuous red-orange edges. A captured juvenile looked scaled, with patches of chestnut-edged black down intermixed with grey feathers on much of its body, and a buff belly. Its bill resembled that of the fledgling. The song comprises three notes of increasing length and frequency. The birds sing more early in the year. The call is a single note, higher-pitched than the song, which rises, falls, and rises again. The birds often give it in response to loud noises and playbacks of its vocalisations. They call more later in the year. Both song and call resemble those of the brown-banded antpitta, but Fenwick's antpitta's notes are shorter and lower-pitched, and those of its song are separated by wider intervals. Distribution and habitat The known distribution of the bird is limited to the Urrao municipality in and near the Colibrí del Sol Bird Reserve, a reserve on the south-eastern slope of the Páramo del Sol massif, at the northern end of the Cordillera Occidental of Colombia, and some west of Medellín, Colombia's second largest city. The massif has over of relatively intact páramo and Polylepis woodland, containing more such habitat than all the other páramos in the region combined. There the bird is restricted to upper montane cloud forest dominated by Colombian oak, at an altitude of above sea level, where most territories contain Chusquea bamboo thickets. It is suspected that its range may be larger than currently known, but so far surveys have failed to confirm this. Behaviour The species exhibits behaviour typical of other members of its genus; it is a shy, terrestrial forager for insects (especially beetles) in the leaf-litter